WO2018223988A1 - Optical module and reflective display device having same - Google Patents

Optical module and reflective display device having same Download PDF

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Publication number
WO2018223988A1
WO2018223988A1 PCT/CN2018/090127 CN2018090127W WO2018223988A1 WO 2018223988 A1 WO2018223988 A1 WO 2018223988A1 CN 2018090127 W CN2018090127 W CN 2018090127W WO 2018223988 A1 WO2018223988 A1 WO 2018223988A1
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WIPO (PCT)
Prior art keywords
optical module
substrate
light emitting
emitting diode
micro light
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PCT/CN2018/090127
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French (fr)
Chinese (zh)
Inventor
祝明
杨泽洲
王飞
杜渊鑫
董学
吕敬
Original Assignee
京东方科技集团股份有限公司
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Publication of WO2018223988A1 publication Critical patent/WO2018223988A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio

Definitions

  • the present disclosure relates to the field of display technology, and more particularly to an optical module and a reflective display device including the same.
  • a reflective display device (such as a reflective liquid crystal display) has a display function by providing a reflective layer on the lower side of the display panel (ie, the side of the liquid crystal layer facing away from the light exiting side) and utilizing reflected light.
  • the present disclosure provides an optical module and a reflective display device including the optical module.
  • an optical module comprising: a transparent substrate substrate having a micro light emitting diode array formed on one side thereof and a plurality of cathode metal wirings and a plurality of strips arranged in a cross An anode metal wiring; and a scattering film coupled to the one side of the transparent substrate substrate on which the micro light emitting diode array is formed, wherein each of the micro light emitting diode arrays is respectively connected to a cathode metal wiring and an anode Metal wiring.
  • the diffusing film is bonded to the one side of the transparent substrate by an optically clear adhesive.
  • the transparent substrate is a glass substrate or a plastic substrate.
  • the miniature light emitting diode array comprises a white light micro light emitting diode.
  • each of the miniature light emitting diode arrays is disposed at an intersection of the one cathode metal wiring and the one anode metal wiring.
  • the plurality of cathode metal wires and the plurality of anode metal wires are blackened or blocked by a black matrix.
  • the optical module further includes a color filter substrate bonded to the scattering film.
  • a reflective display device including a display panel and the optical module described above, wherein a scattering film is disposed between the transparent substrate and the display panel.
  • the display panel includes an array substrate and a reflective layer disposed on the array substrate.
  • the display panel further includes a color filter layer and a liquid crystal layer disposed between the color filter layer and the reflective layer.
  • FIG. 1 is a schematic structural view showing an optical module according to an embodiment of the present disclosure
  • FIG. 2 is a plan view showing a micro light emitting diode array of an optical module according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural view illustrating a reflective display device including an optical module, according to an embodiment of the present disclosure.
  • spatially relative terms may be used herein to describe the relationship of one element or feature to other elements or features as illustrated. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation.
  • the front light source of the related reflective display device usually uses a light guide plate and fabricates a microstructure on the light guide plate, for example, a groove or a strip prism structure is formed on the surface of the light guide plate to improve the reflectance.
  • the related reflective display device has an optical structure fabricated inside the light guide plate.
  • an optical module of an embodiment of the present disclosure includes: a transparent substrate substrate having a micro light emitting diode array and a plurality of cathode metal wirings and a plurality of anode metal wirings arranged in a crosswise manner on one side thereof; and a scattering film, Bonding to the one side of the transparent substrate substrate on which the micro light emitting diode array is formed, wherein each of the micro light emitting diode arrays is respectively connected to a corresponding one of the plurality of cathode metal wirings and a plurality of cathode metal wirings A corresponding one of the anode metal wirings of the anode metal wiring.
  • FIG. 1 is a schematic structural view showing an optical module according to an embodiment of the present disclosure.
  • 2 is a plan view showing a micro light emitting diode array of an optical module in accordance with an embodiment of the present disclosure.
  • an optical module 100 includes a transparent substrate substrate 101 and a scattering film 103 bonded to the transparent substrate substrate 101.
  • the scattering film 103 may be bonded to one side of the transparent substrate 101 through the optically transparent adhesive 102.
  • the transparent base substrate 101 may be a transparent inorganic substrate or an organic substrate.
  • the transparent base substrate 101 may be a transparent substrate selected from a glass substrate, a quartz substrate, a transparent resin substrate, or the like, which has a certain firmness and is light transmissive.
  • the transparent base substrate 101 is a transparent glass substrate or a transparent plastic substrate.
  • a micro light emitting diode array including a plurality of micro light emitting diodes 104 and a plurality of anode metal wirings 105 and a plurality of cathode metal wirings 106 are formed on one side of the transparent substrate 101 (i.e., the surface of the transparent substrate 101). On one side of the scattering film 103).
  • Each of the micro light emitting diodes 104 in the micro light emitting diode array is electrically connected to a corresponding one of the plurality of cathode metal wirings 106 and a corresponding one of the plurality of anode metal wirings 105, thereby enabling light to be emitted.
  • cathode metal wirings 106 and two anode metal wirings 105 are shown in FIG. 2, however, in the present disclosure, an appropriate number of cathode metal wirings and anode metal wirings may be provided according to actual needs. In addition, an appropriate number of micro LEDs 104 can be correspondingly disposed according to actual needs.
  • the miniature light emitting diodes 104 in the miniature light emitting diode array may be white light micro light emitting diodes, but are not limited thereto.
  • Each of the micro light emitting diodes 104 in the micro light emitting diode array is disposed at an intersection of a cathode metal wiring 106 and an anode metal wiring 105 for electrical connection.
  • the micro light emitting diode 104 may be electrically connected to the cathode metal wiring 106 or the anode metal wiring 105 through a suitable electrical connection (for example, a metal wiring) according to actual needs, or may be directly electrically connected to the cathode metal wiring. 106 or anode metal wiring 105.
  • the cathode metal wiring 106 and the anode metal wiring 106 may be blackened, or the cathode metal wiring 106 and the anode metal wiring 106 may be shielded by a black matrix.
  • the optical module 100 may further include a color film substrate 107 (shown in FIG. 3) coupled to the scattering film 103.
  • the anode and cathode metal wiring can be fabricated on a transparent glass substrate or a transparent plastic substrate, and then the micro light emitting diode (for example, white light micro) can be used by a transfer method.
  • the light emitting diodes are transferred to the designed area to be formed.
  • other methods can also be used to form a miniature light emitting diode array on a transparent substrate.
  • FIG. 3 is a schematic structural view illustrating a reflective display device including an optical module, according to an embodiment of the present disclosure.
  • a reflective display device includes a display panel and the optical module described above.
  • the scattering film 103 is disposed between the transparent substrate 101 and the display panel.
  • the display panel includes an array substrate 201 and a reflective layer 202 disposed on the array substrate 201.
  • the display panel further includes a color filter layer 204 and a liquid crystal layer 203 disposed between the color filter layer 204 and the reflective layer 202.
  • the light L1 emitted from the micro light emitting diode array disposed on the transparent substrate 101 is emitted toward the array substrate 201 and is reflected by the reflective layer 202 disposed on the array substrate 201. That is, the reflected light L2 is emitted toward the scattering film.
  • the spacing between the micro light emitting diodes may be the distance of the micro light emitting diode from the emission layer. 2 to 4 times, in this case, the uniformity of the light emission of the micro LED can reach 94.5% or more.
  • the cathode metal wiring 106 and the anode metal wiring 106 have as small a line width as possible.
  • the cathode metal wiring 106 and the anode metal wiring 106 each having a line width of 3 ⁇ m to 4 ⁇ m can be used, and the aperture ratio can reach 99.96 or more, the light transmittance is higher than 89%, and the metal wiring is reflective. The impact is very small.
  • the cathode metal wiring and the anode metal wiring may be blackened, or the black matrix may be used to shield the cathode metal wiring and the anode metal wiring.
  • the reflective display device may further include a black matrix disposed between the liquid crystal layer 203 and the color filter layer 204, in which case a reflective structure may be disposed at a position corresponding to the black matrix in the liquid crystal cell. (for example, a reflective layer).
  • a black matrix disposed between the liquid crystal layer 203 and the color filter layer 204
  • a reflective structure may be disposed at a position corresponding to the black matrix in the liquid crystal cell. (for example, a reflective layer).
  • a miniature light emitting diode array is employed to form a front light source for single side illumination.
  • a front light source has a high aperture ratio, a high transmittance, and a high uniformity. Therefore, when applied to a reflective display device, the reflective display device does not need to use a light guide plate that requires various improvements, and can be significantly Improve the contrast of reflective display devices while improving the color gamut of color reflective display devices.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

An optical module (100) and reflective display device having the same. The optical module (100) comprises: a transparent substrate (101), wherein a micro light emitting diode array and a plurality of cathode metal wires (106) and a plurality of anode metal wires (105) arranged across each other are formed on one side of the substrate; and a scattering film (103), bonded to the side of the transparent substrate (101) formed with the micro light emitting diode array, wherein each micro light emitting diode (104) in the micro light emitting diode array is connected to one cathode metal wire (106) and one anode metal wire (105), respectively.

Description

光学模组和包括其的反射式显示器件Optical module and reflective display device including the same
交叉引用cross reference
本申请要求于2017年6月8日提交的申请号为201710426335.3、发明名称为“光学模组和包括其的反射式显示器件”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。The present application claims priority to Chinese Patent Application No. 201710426335.3, entitled "Optical Modules and Reflective Display Devices Included", which is filed on Jun. 8, 2017, the entire contents of which is incorporated by reference. All incorporated herein.
技术领域Technical field
本公开涉及显示技术领域，且更具体地涉及一种光学模组和一种包括该光学模组的反射式显示器件。The present disclosure relates to the field of display technology, and more particularly to an optical module and a reflective display device including the same.
背景技术Background technique
反射式显示器件(比如反射式液晶显示器)是通过在显示面板的下侧(即液晶层背离出光侧的一侧)设置反射层且利用反射光线来实现显示功能的。A reflective display device (such as a reflective liquid crystal display) has a display function by providing a reflective layer on the lower side of the display panel (ie, the side of the liquid crystal layer facing away from the light exiting side) and utilizing reflected light.
发明内容Summary of the invention
本公开提供了一种光学模组和一种包括该光学模组的反射式显示器件。The present disclosure provides an optical module and a reflective display device including the optical module.
根据本公开的一方面，提供了一种光学模组，所述光学模组包括：透明衬底基板，在其一侧上形成有微型发光二极管阵列以及交叉布置的多条阴极金属布线和多条阳极金属布线；以及散射膜，结合到透明衬底基板的形成有微型发光二极管阵列的所述一侧，其中，微型发光二极管阵列中的每个微型发光二极管分别连接到一条阴极金属布线和一条阳极金属布线。According to an aspect of the present disclosure, an optical module is provided, the optical module comprising: a transparent substrate substrate having a micro light emitting diode array formed on one side thereof and a plurality of cathode metal wirings and a plurality of strips arranged in a cross An anode metal wiring; and a scattering film coupled to the one side of the transparent substrate substrate on which the micro light emitting diode array is formed, wherein each of the micro light emitting diode arrays is respectively connected to a cathode metal wiring and an anode Metal wiring.
在一个实施例中，散射膜通过光学透明胶结合到透明衬底基板的所述一侧。In one embodiment, the diffusing film is bonded to the one side of the transparent substrate by an optically clear adhesive.
在一个实施例中，透明衬底基板是玻璃基板或塑料基板。In one embodiment, the transparent substrate is a glass substrate or a plastic substrate.
在一个实施例中，微型发光二极管阵列包括白光微型发光二极管。In one embodiment, the miniature light emitting diode array comprises a white light micro light emitting diode.
在一个实施例中，微型发光二极管阵列中的每个微型发光二极管设置在所述一条阴极金属布线与所述一条阳极金属布线的交叉位置处。In one embodiment, each of the miniature light emitting diode arrays is disposed at an intersection of the one cathode metal wiring and the one anode metal wiring.
在一个实施例中，所述多条阴极金属布线和所述多条阳极金属布线是经过黑化处理的，或者被黑矩阵遮挡。In one embodiment, the plurality of cathode metal wires and the plurality of anode metal wires are blackened or blocked by a black matrix.
在一个实施例中，所述光学模组还包括结合到散射膜的彩膜基板。In one embodiment, the optical module further includes a color filter substrate bonded to the scattering film.
根据本公开的另一方面，提供了一种反射式显示器件，所述反射式显示器件包括显示面板和上面描述的光学模组，其中，散射膜设置在透明衬底基板和显示面板之间。According to another aspect of the present disclosure, there is provided a reflective display device including a display panel and the optical module described above, wherein a scattering film is disposed between the transparent substrate and the display panel.
在一个实施例中，显示面板包括阵列基板和设置在阵列基板上的反射层。In one embodiment, the display panel includes an array substrate and a reflective layer disposed on the array substrate.
在一个实施例中，显示面板还包括滤色器层以及设置在滤色器层和反射层之间的 液晶层。In one embodiment, the display panel further includes a color filter layer and a liquid crystal layer disposed between the color filter layer and the reflective layer.
附图说明DRAWINGS
图1是示出根据本公开的实施例的光学模组的结构示意图；FIG. 1 is a schematic structural view showing an optical module according to an embodiment of the present disclosure;
图2是示出根据本公开的实施例的光学模组的微型发光二极管阵列的平面示意图；2 is a plan view showing a micro light emitting diode array of an optical module according to an embodiment of the present disclosure;
图3是示出根据本公开的实施例的包括光学模组的反射式显示器件的结构示意图。FIG. 3 is a schematic structural view illustrating a reflective display device including an optical module, according to an embodiment of the present disclosure.
具体实施方式detailed description
将理解的是，当元件或层被称作在另一元件或层“上”或者“连接到”另一元件或层时，该元件或层可以直接在另一元件或层上、直接连接到或直接结合到另一元件或层，或者也可以存在中间元件或中间层。相反，当元件被称作“直接”在另一元件或层“上”或者“直接连接到”另一元件或层时，不存在中间元件或中间层。同样的标号始终指示同样的元件。It will be understood that when an element or layer is referred to as "on" or "connected" to another element or layer, the element or layer can be directly connected to another element or layer. Or directly to another element or layer, or an intermediate element or intermediate layer may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected" or "directly connected to" another element or layer, there is no intermediate element or intermediate layer. The same reference numerals are used to refer to the same elements.
为了便于描述，在这里可使用空间相对术语来描述如图中所示的一个元件或特征与其它元件或特征的关系。将理解的是，空间相对术语意在包含除了在附图中描述的方位之外的装置在使用或操作中的不同方位。For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature to other elements or features as illustrated. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation.
如这里所使用的，除非上下文另外明确指出，否则单数形式的表述也意图包括复数形式。还将理解的是，当在本说明书中使用术语“包括”时，说明存在所述特征、整体、步骤、操作、元件和/或组件，但不排除存在或附加一个或多个其它特征、整体、步骤、操作、元件、组件和/或它们的组。As used herein, the singular forms " It will also be understood that when the term "comprising" is used in the present specification, the description of the features, the whole, the steps, the operations, the elements and/or the components are described, but does not exclude the presence or addition of one or more other features, , steps, operations, components, components, and/or groups thereof.
在下文中，将参照附图详细地解释本公开。Hereinafter, the present disclosure will be explained in detail with reference to the accompanying drawings.
相关反射式显示器件的前置光源通常利用导光板，并在导光板上制作微结构，例如在导光板的表面上制作凹槽或者条状棱镜结构，以提高反射率。另外，相关反射式显示器件将光学结构制作在导光板的内部。The front light source of the related reflective display device usually uses a light guide plate and fabricates a microstructure on the light guide plate, for example, a groove or a strip prism structure is formed on the surface of the light guide plate to improve the reflectance. In addition, the related reflective display device has an optical structure fabricated inside the light guide plate.
然而，这类技术在实现前置光源的同时存在不足之处，由于导光板的上下面均可出光，因而导致对比度很低。However, this type of technology has disadvantages in that the front light source is realized, and since the upper and lower surfaces of the light guide plate can emit light, the contrast is low.
总体地说，本公开实施例的光学模组包括：透明衬底基板，在其一侧上形成有微型发光二极管阵列以及交叉布置的多条阴极金属布线和多条阳极金属布线；以及散射膜，结合到透明衬底基板的形成有微型发光二极管阵列的所述一侧，其中，微型发光二极管阵列中的每个微型发光二极管分别连接到多条阴极金属布线中的相应的一条阴极金属布线和多条阳极金属布线的相应的一条阳极金属布线。In general, an optical module of an embodiment of the present disclosure includes: a transparent substrate substrate having a micro light emitting diode array and a plurality of cathode metal wirings and a plurality of anode metal wirings arranged in a crosswise manner on one side thereof; and a scattering film, Bonding to the one side of the transparent substrate substrate on which the micro light emitting diode array is formed, wherein each of the micro light emitting diode arrays is respectively connected to a corresponding one of the plurality of cathode metal wirings and a plurality of cathode metal wirings A corresponding one of the anode metal wirings of the anode metal wiring.
图1是示出根据本公开的实施例的光学模组的结构示意图。图2是示出根据本公开的实施例的光学模组的微型发光二极管阵列的平面示意图。FIG. 1 is a schematic structural view showing an optical module according to an embodiment of the present disclosure. 2 is a plan view showing a micro light emitting diode array of an optical module in accordance with an embodiment of the present disclosure.
参见图1，根据本公开实施例的光学模组100包括透明衬底基板101和结合到透明衬底基板101的散射膜103。在一个实施例中，散射膜103可以通过光学透明胶102结合到透明衬底基板101的一侧。Referring to FIG. 1, an optical module 100 according to an embodiment of the present disclosure includes a transparent substrate substrate 101 and a scattering film 103 bonded to the transparent substrate substrate 101. In one embodiment, the scattering film 103 may be bonded to one side of the transparent substrate 101 through the optically transparent adhesive 102.
透明衬底基板101可以是透明的无机基板或有机基板。具体而言，透明衬底基板101可以是从玻璃基板、石英基板、透明树脂基板等中选择的透明基板，其具有一定的坚固性并且是透光的。例如，透明衬底基板101是透明玻璃基板或透明塑料基板。The transparent base substrate 101 may be a transparent inorganic substrate or an organic substrate. Specifically, the transparent base substrate 101 may be a transparent substrate selected from a glass substrate, a quartz substrate, a transparent resin substrate, or the like, which has a certain firmness and is light transmissive. For example, the transparent base substrate 101 is a transparent glass substrate or a transparent plastic substrate.
参见图2，包括多个微型发光二极管104的微型发光二极管阵列以及多条阳极金属布线105和多条阴极金属布线106形成在透明衬底基板101的一侧(即，透明衬底基板101的面对散射膜103的一侧)上。微型发光二极管阵列中的每个微型发光二极管104电连接到多条阴极金属布线106中的相应的一条阴极金属布线106和多条阳极金属布线105的相应的一条阳极金属布线105，从而能够发光。为了简洁起见，在图2中仅示出了三条阴极金属布线106和两条阳极金属布线105，然而在本公开中可以根据实际需求设置适当数量的阴极金属布线和阳极金属布线。另外，可以根据实际需求对应地设置适当数量的微型发光二极管104。Referring to FIG. 2, a micro light emitting diode array including a plurality of micro light emitting diodes 104 and a plurality of anode metal wirings 105 and a plurality of cathode metal wirings 106 are formed on one side of the transparent substrate 101 (i.e., the surface of the transparent substrate 101). On one side of the scattering film 103). Each of the micro light emitting diodes 104 in the micro light emitting diode array is electrically connected to a corresponding one of the plurality of cathode metal wirings 106 and a corresponding one of the plurality of anode metal wirings 105, thereby enabling light to be emitted. For the sake of brevity, only three cathode metal wirings 106 and two anode metal wirings 105 are shown in FIG. 2, however, in the present disclosure, an appropriate number of cathode metal wirings and anode metal wirings may be provided according to actual needs. In addition, an appropriate number of micro LEDs 104 can be correspondingly disposed according to actual needs.
在一个实施例中，微型发光二极管阵列中的微型发光二极管104可以是白光微型发光二极管，但不限于此。In one embodiment, the miniature light emitting diodes 104 in the miniature light emitting diode array may be white light micro light emitting diodes, but are not limited thereto.
微型发光二极管阵列中的每个微型发光二极管104设置在一条阴极金属布线106与一条阳极金属布线105的交叉位置处，以进行电连接。可选地，根据实际需要，微型发光二极管104可以通过适当的电连接件(例如，金属布线)电连接到阴极金属布线106或阳极金属布线105，或者，也可以直接地电连接到阴极金属布线106或阳极金属布线105。Each of the micro light emitting diodes 104 in the micro light emitting diode array is disposed at an intersection of a cathode metal wiring 106 and an anode metal wiring 105 for electrical connection. Alternatively, the micro light emitting diode 104 may be electrically connected to the cathode metal wiring 106 or the anode metal wiring 105 through a suitable electrical connection (for example, a metal wiring) according to actual needs, or may be directly electrically connected to the cathode metal wiring. 106 or anode metal wiring 105.
为了提高光学模块所实现的显示对比度，可以将阴极金属布线106和阳极金属布线106进行黑化处理，或者可以利用黑矩阵来遮挡阴极金属布线106和阳极金属布线106。In order to increase the display contrast achieved by the optical module, the cathode metal wiring 106 and the anode metal wiring 106 may be blackened, or the cathode metal wiring 106 and the anode metal wiring 106 may be shielded by a black matrix.
在一个实施例中，光学模组100还可以包括结合到散射膜103的彩膜基板107(如图3所示)。In one embodiment, the optical module 100 may further include a color film substrate 107 (shown in FIG. 3) coupled to the scattering film 103.
再参见图2，关于位于透明衬底基板上的微型发光二极管阵列，可以通过在透明玻璃基板或透明塑料基板上制作阴阳极金属布线，然后再利用转印方法将微型发光二极管(例如，白光微型发光二极管)转印到所设计的区域内来形成。当然，也可以采用其他方法在透明衬底基板上形成微型发光二极管阵列。Referring again to FIG. 2, regarding the micro light emitting diode array on the transparent substrate, the anode and cathode metal wiring can be fabricated on a transparent glass substrate or a transparent plastic substrate, and then the micro light emitting diode (for example, white light micro) can be used by a transfer method. The light emitting diodes are transferred to the designed area to be formed. Of course, other methods can also be used to form a miniature light emitting diode array on a transparent substrate.
图3是示出根据本公开的实施例的包括光学模组的反射式显示器件的结构示意图。FIG. 3 is a schematic structural view illustrating a reflective display device including an optical module, according to an embodiment of the present disclosure.
参见图3，根据本公开实施例的反射式显示器件包括显示面板和上面描述的光学模组。散射膜103设置在透明衬底基板101和显示面板之间。Referring to FIG. 3, a reflective display device according to an embodiment of the present disclosure includes a display panel and the optical module described above. The scattering film 103 is disposed between the transparent substrate 101 and the display panel.
在一个实施例中，显示面板包括阵列基板201和设置在阵列基板201上的反射层 202。In one embodiment, the display panel includes an array substrate 201 and a reflective layer 202 disposed on the array substrate 201.
此外，显示面板还包括滤色器层204以及设置在滤色器层204和反射层202之间的液晶层203。Further, the display panel further includes a color filter layer 204 and a liquid crystal layer 203 disposed between the color filter layer 204 and the reflective layer 202.
从设置在透明衬底基板101上的微型发光二极管阵列发射的光L1朝向阵列基板201发射，并被设置在阵列基板201上的反射层202反射。即，反射出的光L2朝向散射膜出射。The light L1 emitted from the micro light emitting diode array disposed on the transparent substrate 101 is emitted toward the array substrate 201 and is reflected by the reflective layer 202 disposed on the array substrate 201. That is, the reflected light L2 is emitted toward the scattering film.
在包括散射膜的情况下，对于微型发光二极管，在微型发光二极管满足整个面板的亮度均匀性和无明显视差的情况下，微型发光二极管之间的间距可以是微型发光二极管距离发射层的距离的2倍至4倍，在此情况下，微型发光二极管发光的均一性可以达到94.5％以上。In the case of including a scattering film, for the micro light emitting diode, in the case where the micro light emitting diode satisfies the brightness uniformity of the entire panel and has no apparent parallax, the spacing between the micro light emitting diodes may be the distance of the micro light emitting diode from the emission layer. 2 to 4 times, in this case, the uniformity of the light emission of the micro LED can reach 94.5% or more.
另外，为了保证开口率和透过率，阴极金属布线106和阳极金属布线106具有尽可能小的线宽。在实际工艺中，可以采用线宽均为3μm至4μm的阴极金属布线106和阳极金属布线106，此时开口率可以达到99.96以上，光的透过率高于89％，并且金属布线对反射率的影响非常小。In addition, in order to secure the aperture ratio and the transmittance, the cathode metal wiring 106 and the anode metal wiring 106 have as small a line width as possible. In the actual process, the cathode metal wiring 106 and the anode metal wiring 106 each having a line width of 3 μm to 4 μm can be used, and the aperture ratio can reach 99.96 or more, the light transmittance is higher than 89%, and the metal wiring is reflective. The impact is very small.
如上所述，为了改善整个面板的对比度，可以将阴极金属布线和阳极金属布线进行黑化处理，或者可以利用黑矩阵来遮挡阴极金属布线和阳极金属布线。As described above, in order to improve the contrast of the entire panel, the cathode metal wiring and the anode metal wiring may be blackened, or the black matrix may be used to shield the cathode metal wiring and the anode metal wiring.
此外，根据本公开实施例的反射式显示器件还可以包括设置在液晶层203和滤色器层204之间的黑矩阵，在此情况下，可以在液晶盒内对应黑矩阵的位置设置反射结构(例如，反射层)。这样，可以将原本被黑矩阵吸收的光线的传播方向改变，从而使该部分光线从亚像素部分正常射出，这提高了光的利用率，进而提高了反射式显示器件的反射率。Furthermore, the reflective display device according to an embodiment of the present disclosure may further include a black matrix disposed between the liquid crystal layer 203 and the color filter layer 204, in which case a reflective structure may be disposed at a position corresponding to the black matrix in the liquid crystal cell. (for example, a reflective layer). In this way, the direction of propagation of the light originally absorbed by the black matrix can be changed, so that the portion of the light is normally emitted from the sub-pixel portion, which improves the utilization of light, thereby improving the reflectivity of the reflective display device.
在本公开的实施例中，采用微型发光二极管阵列来形成前置光源，以进行单侧发光。这样的前置光源具有高开口率、高透过率以及高均一性的特点，因此，当应用于反射式显示器件时，反射式显示器件无需使用需进行各种改进的导光板，且能够显著提高反射式显示器件的对比度，同时改善彩色反射式显示器件的色域。In an embodiment of the present disclosure, a miniature light emitting diode array is employed to form a front light source for single side illumination. Such a front light source has a high aperture ratio, a high transmittance, and a high uniformity. Therefore, when applied to a reflective display device, the reflective display device does not need to use a light guide plate that requires various improvements, and can be significantly Improve the contrast of reflective display devices while improving the color gamut of color reflective display devices.
已经针对附图给出了对本公开的特定示例性实施例的前面的描述。这些示例性实施例并不意图是穷举性的或者将本公开局限于所公开的精确形式，并且明显的是，在以上教导的启示下，本领域普通技术人员能够做出许多修改和变化。因此，本公开的范围并不意图局限于前述的实施例，而是意图由权利要求和它们的等同物所限定。The foregoing description of the specific exemplary embodiments of the present disclosure has been presented in the The present invention is not intended to be exhaustive or to limit the invention to the precise form disclosed. It is obvious that many modifications and changes can be made by those skilled in the art. Therefore, the scope of the present disclosure is not intended to be limited to the foregoing embodiments, but is intended to be defined by the claims and their equivalents.

Claims (10)

  1. 一种光学模组，所述光学模组包括：An optical module includes:
    透明衬底基板，在其一侧上形成有微型发光二极管阵列以及交叉布置的多条阴极金属布线和多条阳极金属布线；以及a transparent substrate substrate having a micro light emitting diode array and a plurality of cathode metal wirings and a plurality of anode metal wirings arranged in a crosswise manner on one side thereof;
    散射膜，结合到透明衬底基板的形成有微型发光二极管阵列的所述一侧，a scattering film bonded to the one side of the transparent substrate substrate on which the micro light emitting diode array is formed,
    其中，微型发光二极管阵列中的每个微型发光二极管分别连接到一条阴极金属布线和一条阳极金属布线。Wherein each of the micro light emitting diode arrays is connected to a cathode metal wiring and an anode metal wiring, respectively.
  2. 根据权利要求1所述的光学模组，其中，散射膜通过光学透明胶结合到透明衬底基板的所述一侧。The optical module according to claim 1, wherein the scattering film is bonded to the one side of the transparent substrate by an optically transparent adhesive.
  3. 根据权利要求1或2所述的光学模组，其中，透明衬底基板是透明玻璃基板或透明塑料基板。The optical module according to claim 1 or 2, wherein the transparent substrate is a transparent glass substrate or a transparent plastic substrate.
  4. 根据权利要求1至3中任意一项所述的光学模组，其中，微型发光二极管阵列包括白光微型发光二极管。The optical module according to any one of claims 1 to 3, wherein the micro light emitting diode array comprises a white light micro light emitting diode.
  5. 根据权利要求1至4中任意一项所述的光学模组，其中，微型发光二极管阵列中的每个微型发光二极管在所述一条阴极金属布线与所述一条阳极金属布线的交叉位置处。The optical module according to any one of claims 1 to 4, wherein each of the micro light emitting diode arrays is at a position where the one cathode metal wiring and the one anode metal wiring intersect.
  6. 根据权利要求1至5中任意一项所述的光学模组，其中，所述多条阴极金属布线和所述多条阳极金属布线是经过黑化处理的，或者被黑矩阵遮挡。The optical module according to any one of claims 1 to 5, wherein the plurality of cathode metal wirings and the plurality of anode metal wirings are blackened or blocked by a black matrix.
  7. 根据权利要求1至6中任意一项所述的光学模组，其中，所述光学模组还包括结合到散射膜的彩膜基板。The optical module according to any one of claims 1 to 6, wherein the optical module further comprises a color filter substrate bonded to the scattering film.
  8. 一种反射式显示器件，所述反射式显示器件包括显示面板和根据权利要求1至7中的任一项所述的光学模组，其中，散射膜在透明衬底基板和显示面板之间。A reflective display device comprising a display panel and the optical module according to any one of claims 1 to 7, wherein the scattering film is between the transparent substrate and the display panel.
  9. 根据权利要求8所述的反射式显示器件，其中，显示面板包括阵列基板和在阵列基板上的反射层。The reflective display device of claim 8, wherein the display panel comprises an array substrate and a reflective layer on the array substrate.
  10. 根据权利要求9所述的反射式显示器件，其中，显示面板还包括滤色器层以及在滤色器层和反射层之间的液晶层。The reflective display device of claim 9, wherein the display panel further comprises a color filter layer and a liquid crystal layer between the color filter layer and the reflective layer.
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